Satadal Das completed his MD from Calcutta University. He is at present Principal Investigator of Virology Laboratory, Regional Research Institure, CCRH, Kolkata, Govt. of India and Consultant Microbiologist, Peerless Hospital & B.K. Roy Research Centre, Kolkata. He was Professor of Pathology & Microbiology at a state postgraduate medical college, Government of West Bengal, India. He has published 120 articles in peer reviewed journals, published a textbook on microbiology, and presented more than 200 papers. He has supervised 12 PhD students. He has also interest in space biology and delivered lectures at Royal Holloway, London University and at Rutgers University in astrobiology.